And to my defence centerfiresystems.com didnt say anything about it being threaded. I should have known the difference or pin vs thread...but at the same time I think its a little irresponsible of them...as I bought 100 oil cans that were empty.
The ad didnt state they were empty, just said 100 oil cans 4.99! So I jumped.
(I cant remember the real price, but it was around 4.99)
So...I think Ill stick to cheaperthandirt.com for my surplus. It was delivered to the wrong address, and there are some other quality problems.